Failure Mechanism And Improvement of Failure Criteria of The Layered Rock Slope With Reverse High-Dip
The failure process of the layered rock slope with reverse high-dip is a gradual process with slope deformation, under special control of the boundary conditions and there have been a certain degree of elastic-plastic deformation. According to the deformation of destructive rock and failure modes , it can be summarized into the problem that it is the failure of the cantilever with fixed bottom and free top,under the combined action of external and internal loads, which can be viewed as dumping - deformed and then Bending - broken.Based on the principle of minimum potential energy, an equation characterizing the relationship between the deflection and limit length of cantilever is established, by the means of Elastic-Plastic theory, we can es tablish a failure criteria based on the tensile strength of rock mass. Based on the above information, the role of creep effects in the failure process of the slope is considerated, which is close with timet, so time t can be used to characterize the creep effects. A time-related correction factor K is put forward to improve the above-mentioned criteria, which make the criteria more reasonable.
reverse high-dip principle of minimum potential energy improvement of failure criteria correction factor K
Qi-liang LI E-Chuan YAN Ling-Ling CAI
Faculty of Engineering, China University of Geosciences, Wuhan 430074, China
国际会议
The Third International Conference on Modelling and Simulation(第三届国际建模、计算、仿真、优化及其应用学术会议 ICMS 2010)
无锡
英文
278-283
2010-06-04（万方平台首次上网日期，不代表论文的发表时间）